BCEL

Atreca, Inc. (Atreca) (NASDAQ: BCEL), a clinical-stage biotechnology company focused on developing novel therapeutics generated through a unique discovery platform based on interrogation of the active human immune response, today announced the appointment of Stephen Gould, Ph.D., as Chief Scientific Officer.

“Stephen is an exceptional scientific leader with particular experience in the development of weaponized antibody-based therapeutics, and we are excited to welcome him to the Atreca team,” said John Orwin, Chief Executive Officer of Atreca. “Our discovery platform has proven to be highly productive in generating promising tumor-selective lead antibodies against novel targets and target epitopes, and Stephen’s expertise will be invaluable as we continue to build and advance our preclinical pipeline.”

Dr. Gould is joining Atreca following 15 years at Genentech, where he held positions of increasing responsibility, most recently serving as Executive Director, Translational Oncology. At Genentech, Dr. Gould led a team focused on developing tumor specific antibodies weaponized with immune-targeting arms or drug payloads for use in both hematologic and solid tumors, including two approved medicines. Prior to joining Genentech, Dr. Gould served as Senior Director, Oncology at Curis. Dr. Gould received his Ph.D. from the University of Connecticut Health Center in Development Biology and held postdoctoral fellowships at the University of California San Francisco in the department of Orthopedic Surgery, and University of Virginia in the Department of Biology.

“Atreca has built a powerful discovery and development platform based on a unique approach to identifying tumor-targeting antibodies from human immune responses,” said Dr. Gould. “I am pleased to join Atreca’s talented scientific team and look forward to helping advance the Company’s highly promising pipeline of novel, weaponized antibodies.”

About Atreca, Inc.

Atreca is a biopharmaceutical company developing novel antibody-based immunotherapeutics generated by its differentiated discovery platform. Atreca's platform allows access to an unexplored landscape in oncology through the identification of unique antibody-target pairs generated by the human immune system during an active immune response against tumors. These antibodies provide the basis for first-in-class therapeutic candidates, such as our lead product candidate ATRC-101, a monoclonal antibody targeting a novel ribonucleoprotein complex, as well as ATRC-301, an antibody drug conjugate targeting a novel epitope on EphA2. A Phase 1b study evaluating ATRC-101 in multiple solid tumor cancers is currently enrolling patients, and ATRC-301 is in IND-enabling studies. For more information on Atreca, please visit www.atreca.com.

Forward-Looking Statements

Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements regarding our strategy and future plans, including statements regarding our discovery platform and preclinical pipeline, the development of ATRC-101 and ATRC-301, and our preclinical and clinical plans and the timing thereof. Our actual results may differ materially from those indicated in these forward-looking statements due to risks and uncertainties related to the initiation, timing, progress and results of our research and development programs, preclinical studies, clinical trials, regulatory submissions, and other matters that are described in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) and available on the SEC's website at www.sec.gov, including the risk factors set forth therein. Investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release, and we undertake no obligation to update any forward-looking statement in this press release, except as required by law.

Contacts

Atreca, Inc.Herb CrossChief Financial Officerinfo@atreca.comInvestors:Alex Gray, 650-779-9251agray@atreca.com

Media:Julia Fuller, 858-692-2001julia@fordhutmanmedia.com Source: Atreca, Inc.